/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 23:31:12,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 23:31:12,568 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 23:31:12,572 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 23:31:12,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 23:31:12,599 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 23:31:12,601 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 23:31:12,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 23:31:12,602 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 23:31:12,605 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 23:31:12,606 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 23:31:12,606 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 23:31:12,607 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 23:31:12,608 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 23:31:12,609 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 23:31:12,609 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 23:31:12,609 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 23:31:12,609 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 23:31:12,609 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 23:31:12,609 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 23:31:12,610 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 23:31:12,610 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 23:31:12,610 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 23:31:12,610 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 23:31:12,611 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 23:31:12,611 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 23:31:12,611 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 23:31:12,611 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 23:31:12,612 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 23:31:12,612 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 23:31:12,613 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 23:31:12,613 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 23:31:12,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:31:12,613 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 23:31:12,614 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 23:31:12,614 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 23:31:12,614 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 23:31:12,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 23:31:12,614 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 23:31:12,614 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 23:31:12,615 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 23:31:12,615 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 23:31:12,615 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 23:31:12,615 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 23:31:12,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 23:31:12,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 23:31:12,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 23:31:12,876 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 23:31:12,876 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 23:31:12,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-15 23:31:14,060 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 23:31:14,388 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 23:31:14,389 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-15 23:31:14,409 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4f3d1a79/c137f83631014a649909fb2f98bd198a/FLAGec9f7451a [2023-12-15 23:31:14,427 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4f3d1a79/c137f83631014a649909fb2f98bd198a [2023-12-15 23:31:14,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 23:31:14,430 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 23:31:14,431 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 23:31:14,432 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 23:31:14,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 23:31:14,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:31:14" (1/1) ... [2023-12-15 23:31:14,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32811958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:14, skipping insertion in model container [2023-12-15 23:31:14,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:31:14" (1/1) ... [2023-12-15 23:31:14,525 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 23:31:14,857 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[10634,10647] [2023-12-15 23:31:14,932 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[25860,25873] [2023-12-15 23:31:15,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:31:15,185 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 23:31:15,236 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[10634,10647] [2023-12-15 23:31:15,276 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[25860,25873] [2023-12-15 23:31:15,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:31:15,407 INFO L206 MainTranslator]: Completed translation [2023-12-15 23:31:15,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:15 WrapperNode [2023-12-15 23:31:15,408 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 23:31:15,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 23:31:15,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 23:31:15,409 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 23:31:15,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:15" (1/1) ... [2023-12-15 23:31:15,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:15" (1/1) ... [2023-12-15 23:31:15,540 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3876 [2023-12-15 23:31:15,540 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 23:31:15,541 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 23:31:15,541 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 23:31:15,541 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 23:31:15,551 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:15" (1/1) ... [2023-12-15 23:31:15,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:15" (1/1) ... [2023-12-15 23:31:15,563 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:15" (1/1) ... [2023-12-15 23:31:15,616 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 23:31:15,616 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:15" (1/1) ... [2023-12-15 23:31:15,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:15" (1/1) ... [2023-12-15 23:31:15,658 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:15" (1/1) ... [2023-12-15 23:31:15,675 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:15" (1/1) ... [2023-12-15 23:31:15,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:15" (1/1) ... [2023-12-15 23:31:15,706 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:15" (1/1) ... [2023-12-15 23:31:15,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 23:31:15,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 23:31:15,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 23:31:15,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 23:31:15,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:15" (1/1) ... [2023-12-15 23:31:15,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:31:15,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:31:15,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 23:31:15,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 23:31:15,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 23:31:15,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 23:31:15,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 23:31:15,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 23:31:15,976 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 23:31:15,978 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 23:31:17,580 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 23:31:17,641 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 23:31:17,641 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-15 23:31:17,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:31:17 BoogieIcfgContainer [2023-12-15 23:31:17,642 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 23:31:17,644 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 23:31:17,644 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 23:31:17,647 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 23:31:17,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:31:14" (1/3) ... [2023-12-15 23:31:17,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afca967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:31:17, skipping insertion in model container [2023-12-15 23:31:17,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:31:15" (2/3) ... [2023-12-15 23:31:17,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afca967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:31:17, skipping insertion in model container [2023-12-15 23:31:17,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:31:17" (3/3) ... [2023-12-15 23:31:17,650 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-15 23:31:17,665 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 23:31:17,665 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 23:31:17,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 23:31:17,730 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1bd5e293, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 23:31:17,730 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 23:31:17,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 703 states, 700 states have (on average 1.7857142857142858) internal successors, (1250), 702 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:17,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-15 23:31:17,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:17,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:17,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:17,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:17,759 INFO L85 PathProgramCache]: Analyzing trace with hash 354198095, now seen corresponding path program 1 times [2023-12-15 23:31:17,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:17,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725363917] [2023-12-15 23:31:17,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:17,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:18,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:18,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:18,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725363917] [2023-12-15 23:31:18,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725363917] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:18,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:18,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:18,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758279155] [2023-12-15 23:31:18,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:18,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:18,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:18,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:18,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:18,186 INFO L87 Difference]: Start difference. First operand has 703 states, 700 states have (on average 1.7857142857142858) internal successors, (1250), 702 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:18,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:18,316 INFO L93 Difference]: Finished difference Result 1065 states and 1852 transitions. [2023-12-15 23:31:18,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:18,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-15 23:31:18,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:18,337 INFO L225 Difference]: With dead ends: 1065 [2023-12-15 23:31:18,337 INFO L226 Difference]: Without dead ends: 845 [2023-12-15 23:31:18,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:18,345 INFO L413 NwaCegarLoop]: 1244 mSDtfsCounter, 630 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 2071 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:18,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 2071 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:31:18,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2023-12-15 23:31:18,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 843. [2023-12-15 23:31:18,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 841 states have (on average 1.3686087990487514) internal successors, (1151), 842 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:18,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1151 transitions. [2023-12-15 23:31:18,423 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1151 transitions. Word has length 62 [2023-12-15 23:31:18,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:18,423 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 1151 transitions. [2023-12-15 23:31:18,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:18,424 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1151 transitions. [2023-12-15 23:31:18,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-15 23:31:18,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:18,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:18,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 23:31:18,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:18,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:18,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1907491894, now seen corresponding path program 1 times [2023-12-15 23:31:18,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:18,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595111972] [2023-12-15 23:31:18,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:18,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:18,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:18,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:18,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595111972] [2023-12-15 23:31:18,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595111972] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:18,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:18,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:18,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271948712] [2023-12-15 23:31:18,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:18,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:18,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:18,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:18,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:18,620 INFO L87 Difference]: Start difference. First operand 843 states and 1151 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:18,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:18,746 INFO L93 Difference]: Finished difference Result 1470 states and 2025 transitions. [2023-12-15 23:31:18,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:18,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-12-15 23:31:18,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:18,752 INFO L225 Difference]: With dead ends: 1470 [2023-12-15 23:31:18,752 INFO L226 Difference]: Without dead ends: 1227 [2023-12-15 23:31:18,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:18,755 INFO L413 NwaCegarLoop]: 1034 mSDtfsCounter, 549 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:18,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 1681 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:31:18,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2023-12-15 23:31:18,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1223. [2023-12-15 23:31:18,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 1221 states have (on average 1.3546273546273546) internal successors, (1654), 1222 states have internal predecessors, (1654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:18,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1654 transitions. [2023-12-15 23:31:18,783 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1654 transitions. Word has length 63 [2023-12-15 23:31:18,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:18,783 INFO L495 AbstractCegarLoop]: Abstraction has 1223 states and 1654 transitions. [2023-12-15 23:31:18,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:18,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1654 transitions. [2023-12-15 23:31:18,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-15 23:31:18,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:18,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:18,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 23:31:18,787 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:18,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:18,788 INFO L85 PathProgramCache]: Analyzing trace with hash -715190064, now seen corresponding path program 1 times [2023-12-15 23:31:18,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:18,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907484438] [2023-12-15 23:31:18,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:18,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:18,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:18,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:18,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907484438] [2023-12-15 23:31:18,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907484438] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:18,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:18,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:31:18,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697308404] [2023-12-15 23:31:18,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:18,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:31:18,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:18,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:31:18,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:31:18,960 INFO L87 Difference]: Start difference. First operand 1223 states and 1654 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:19,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:19,456 INFO L93 Difference]: Finished difference Result 2481 states and 3456 transitions. [2023-12-15 23:31:19,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:31:19,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-12-15 23:31:19,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:19,464 INFO L225 Difference]: With dead ends: 2481 [2023-12-15 23:31:19,464 INFO L226 Difference]: Without dead ends: 1482 [2023-12-15 23:31:19,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:31:19,470 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 2610 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2610 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:19,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2610 Valid, 573 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:31:19,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2023-12-15 23:31:19,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1480. [2023-12-15 23:31:19,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 1478 states have (on average 1.395805142083897) internal successors, (2063), 1479 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:19,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 2063 transitions. [2023-12-15 23:31:19,503 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 2063 transitions. Word has length 63 [2023-12-15 23:31:19,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:19,504 INFO L495 AbstractCegarLoop]: Abstraction has 1480 states and 2063 transitions. [2023-12-15 23:31:19,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:19,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 2063 transitions. [2023-12-15 23:31:19,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-15 23:31:19,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:19,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:19,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 23:31:19,507 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:19,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:19,507 INFO L85 PathProgramCache]: Analyzing trace with hash -366683150, now seen corresponding path program 1 times [2023-12-15 23:31:19,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:19,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313534557] [2023-12-15 23:31:19,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:19,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:19,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:19,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:19,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313534557] [2023-12-15 23:31:19,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313534557] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:19,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:19,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:19,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082138560] [2023-12-15 23:31:19,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:19,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:19,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:19,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:19,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:19,620 INFO L87 Difference]: Start difference. First operand 1480 states and 2063 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:19,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:19,677 INFO L93 Difference]: Finished difference Result 2948 states and 4173 transitions. [2023-12-15 23:31:19,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:19,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-12-15 23:31:19,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:19,687 INFO L225 Difference]: With dead ends: 2948 [2023-12-15 23:31:19,688 INFO L226 Difference]: Without dead ends: 2073 [2023-12-15 23:31:19,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:19,692 INFO L413 NwaCegarLoop]: 946 mSDtfsCounter, 578 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:19,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 1482 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:31:19,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2023-12-15 23:31:19,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 2067. [2023-12-15 23:31:19,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2067 states, 2065 states have (on average 1.3801452784503632) internal successors, (2850), 2066 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:19,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2067 states to 2067 states and 2850 transitions. [2023-12-15 23:31:19,742 INFO L78 Accepts]: Start accepts. Automaton has 2067 states and 2850 transitions. Word has length 64 [2023-12-15 23:31:19,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:19,743 INFO L495 AbstractCegarLoop]: Abstraction has 2067 states and 2850 transitions. [2023-12-15 23:31:19,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:19,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2067 states and 2850 transitions. [2023-12-15 23:31:19,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-15 23:31:19,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:19,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:19,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 23:31:19,748 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:19,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:19,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1303921466, now seen corresponding path program 1 times [2023-12-15 23:31:19,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:19,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060668955] [2023-12-15 23:31:19,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:19,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:19,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:19,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:19,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060668955] [2023-12-15 23:31:19,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060668955] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:19,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:19,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:19,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42494777] [2023-12-15 23:31:19,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:19,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:19,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:19,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:19,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:19,840 INFO L87 Difference]: Start difference. First operand 2067 states and 2850 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:19,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:19,903 INFO L93 Difference]: Finished difference Result 4441 states and 6242 transitions. [2023-12-15 23:31:19,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:19,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-12-15 23:31:19,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:19,915 INFO L225 Difference]: With dead ends: 4441 [2023-12-15 23:31:19,915 INFO L226 Difference]: Without dead ends: 3158 [2023-12-15 23:31:19,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:19,918 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 396 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:19,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1439 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:31:19,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3158 states. [2023-12-15 23:31:19,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3158 to 3154. [2023-12-15 23:31:19,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3154 states, 3152 states have (on average 1.3800761421319796) internal successors, (4350), 3153 states have internal predecessors, (4350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:19,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 4350 transitions. [2023-12-15 23:31:19,992 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 4350 transitions. Word has length 65 [2023-12-15 23:31:19,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:19,992 INFO L495 AbstractCegarLoop]: Abstraction has 3154 states and 4350 transitions. [2023-12-15 23:31:19,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:19,993 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 4350 transitions. [2023-12-15 23:31:19,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-15 23:31:19,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:19,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:19,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 23:31:19,997 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:19,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:19,997 INFO L85 PathProgramCache]: Analyzing trace with hash -118541293, now seen corresponding path program 1 times [2023-12-15 23:31:19,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:19,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881356965] [2023-12-15 23:31:19,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:19,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:20,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:20,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:20,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881356965] [2023-12-15 23:31:20,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881356965] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:20,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:20,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:31:20,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971821664] [2023-12-15 23:31:20,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:20,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:31:20,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:20,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:31:20,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:31:20,105 INFO L87 Difference]: Start difference. First operand 3154 states and 4350 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:20,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:20,498 INFO L93 Difference]: Finished difference Result 6801 states and 9464 transitions. [2023-12-15 23:31:20,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:31:20,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-12-15 23:31:20,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:20,512 INFO L225 Difference]: With dead ends: 6801 [2023-12-15 23:31:20,513 INFO L226 Difference]: Without dead ends: 3981 [2023-12-15 23:31:20,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:31:20,517 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 2282 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2282 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:20,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2282 Valid, 520 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:31:20,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3981 states. [2023-12-15 23:31:20,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3981 to 3965. [2023-12-15 23:31:20,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3965 states, 3963 states have (on average 1.3817814786777693) internal successors, (5476), 3964 states have internal predecessors, (5476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:20,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 5476 transitions. [2023-12-15 23:31:20,596 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 5476 transitions. Word has length 65 [2023-12-15 23:31:20,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:20,596 INFO L495 AbstractCegarLoop]: Abstraction has 3965 states and 5476 transitions. [2023-12-15 23:31:20,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:20,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 5476 transitions. [2023-12-15 23:31:20,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-15 23:31:20,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:20,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:20,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 23:31:20,601 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:20,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:20,601 INFO L85 PathProgramCache]: Analyzing trace with hash -169263787, now seen corresponding path program 1 times [2023-12-15 23:31:20,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:20,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342678044] [2023-12-15 23:31:20,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:20,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:20,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:20,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:20,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342678044] [2023-12-15 23:31:20,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342678044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:20,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:20,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:31:20,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548431734] [2023-12-15 23:31:20,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:20,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:31:20,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:20,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:31:20,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:31:20,726 INFO L87 Difference]: Start difference. First operand 3965 states and 5476 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:21,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:21,435 INFO L93 Difference]: Finished difference Result 13635 states and 19359 transitions. [2023-12-15 23:31:21,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:31:21,436 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-15 23:31:21,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:21,475 INFO L225 Difference]: With dead ends: 13635 [2023-12-15 23:31:21,475 INFO L226 Difference]: Without dead ends: 12451 [2023-12-15 23:31:21,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:31:21,483 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 4934 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4934 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:21,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4934 Valid, 1027 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 23:31:21,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12451 states. [2023-12-15 23:31:21,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12451 to 3989. [2023-12-15 23:31:21,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3989 states, 3987 states have (on average 1.381489841986456) internal successors, (5508), 3988 states have internal predecessors, (5508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:21,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3989 states to 3989 states and 5508 transitions. [2023-12-15 23:31:21,638 INFO L78 Accepts]: Start accepts. Automaton has 3989 states and 5508 transitions. Word has length 66 [2023-12-15 23:31:21,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:21,639 INFO L495 AbstractCegarLoop]: Abstraction has 3989 states and 5508 transitions. [2023-12-15 23:31:21,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:21,639 INFO L276 IsEmpty]: Start isEmpty. Operand 3989 states and 5508 transitions. [2023-12-15 23:31:21,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-15 23:31:21,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:21,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:21,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 23:31:21,644 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:21,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:21,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1484472013, now seen corresponding path program 1 times [2023-12-15 23:31:21,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:21,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365031429] [2023-12-15 23:31:21,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:21,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:21,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:21,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:21,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365031429] [2023-12-15 23:31:21,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365031429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:21,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:21,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:31:21,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34713786] [2023-12-15 23:31:21,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:21,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:31:21,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:21,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:31:21,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:31:21,744 INFO L87 Difference]: Start difference. First operand 3989 states and 5508 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:22,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:22,060 INFO L93 Difference]: Finished difference Result 9014 states and 12508 transitions. [2023-12-15 23:31:22,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:31:22,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-15 23:31:22,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:22,078 INFO L225 Difference]: With dead ends: 9014 [2023-12-15 23:31:22,078 INFO L226 Difference]: Without dead ends: 5334 [2023-12-15 23:31:22,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:31:22,087 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 2348 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2348 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:22,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2348 Valid, 528 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:31:22,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2023-12-15 23:31:22,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 3989. [2023-12-15 23:31:22,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3989 states, 3987 states have (on average 1.3767243541509908) internal successors, (5489), 3988 states have internal predecessors, (5489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:22,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3989 states to 3989 states and 5489 transitions. [2023-12-15 23:31:22,167 INFO L78 Accepts]: Start accepts. Automaton has 3989 states and 5489 transitions. Word has length 66 [2023-12-15 23:31:22,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:22,168 INFO L495 AbstractCegarLoop]: Abstraction has 3989 states and 5489 transitions. [2023-12-15 23:31:22,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:22,168 INFO L276 IsEmpty]: Start isEmpty. Operand 3989 states and 5489 transitions. [2023-12-15 23:31:22,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-15 23:31:22,176 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:22,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:22,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 23:31:22,176 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:22,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:22,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1411280257, now seen corresponding path program 1 times [2023-12-15 23:31:22,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:22,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741071856] [2023-12-15 23:31:22,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:22,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:22,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:22,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:22,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741071856] [2023-12-15 23:31:22,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741071856] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:22,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:22,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:31:22,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900325128] [2023-12-15 23:31:22,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:22,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:31:22,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:22,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:31:22,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:31:22,310 INFO L87 Difference]: Start difference. First operand 3989 states and 5489 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:22,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:22,697 INFO L93 Difference]: Finished difference Result 8903 states and 12250 transitions. [2023-12-15 23:31:22,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:31:22,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-15 23:31:22,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:22,707 INFO L225 Difference]: With dead ends: 8903 [2023-12-15 23:31:22,707 INFO L226 Difference]: Without dead ends: 5194 [2023-12-15 23:31:22,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:31:22,713 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 2066 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:22,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 485 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:31:22,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5194 states. [2023-12-15 23:31:22,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5194 to 5172. [2023-12-15 23:31:22,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5172 states, 5170 states have (on average 1.3613152804642166) internal successors, (7038), 5171 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:22,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 7038 transitions. [2023-12-15 23:31:22,798 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 7038 transitions. Word has length 67 [2023-12-15 23:31:22,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:22,798 INFO L495 AbstractCegarLoop]: Abstraction has 5172 states and 7038 transitions. [2023-12-15 23:31:22,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:22,798 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 7038 transitions. [2023-12-15 23:31:22,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-15 23:31:22,803 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:22,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:22,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 23:31:22,803 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:22,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:22,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1696216302, now seen corresponding path program 1 times [2023-12-15 23:31:22,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:22,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780978833] [2023-12-15 23:31:22,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:22,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:22,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:22,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:22,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780978833] [2023-12-15 23:31:22,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780978833] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:22,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:22,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:31:22,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655312661] [2023-12-15 23:31:22,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:22,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:31:22,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:22,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:31:22,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:31:22,928 INFO L87 Difference]: Start difference. First operand 5172 states and 7038 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:23,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:23,550 INFO L93 Difference]: Finished difference Result 18042 states and 24834 transitions. [2023-12-15 23:31:23,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:31:23,550 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-15 23:31:23,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:23,602 INFO L225 Difference]: With dead ends: 18042 [2023-12-15 23:31:23,602 INFO L226 Difference]: Without dead ends: 15525 [2023-12-15 23:31:23,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:31:23,607 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 4155 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4155 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:23,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4155 Valid, 940 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 23:31:23,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15525 states. [2023-12-15 23:31:23,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15525 to 5200. [2023-12-15 23:31:23,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5200 states, 5198 states have (on average 1.3609080415544441) internal successors, (7074), 5199 states have internal predecessors, (7074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:23,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5200 states to 5200 states and 7074 transitions. [2023-12-15 23:31:23,779 INFO L78 Accepts]: Start accepts. Automaton has 5200 states and 7074 transitions. Word has length 67 [2023-12-15 23:31:23,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:23,779 INFO L495 AbstractCegarLoop]: Abstraction has 5200 states and 7074 transitions. [2023-12-15 23:31:23,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:23,780 INFO L276 IsEmpty]: Start isEmpty. Operand 5200 states and 7074 transitions. [2023-12-15 23:31:23,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-15 23:31:23,785 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:23,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:23,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 23:31:23,785 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:23,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:23,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1850748370, now seen corresponding path program 1 times [2023-12-15 23:31:23,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:23,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062811004] [2023-12-15 23:31:23,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:23,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:23,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:23,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:23,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062811004] [2023-12-15 23:31:23,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062811004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:23,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:23,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:31:23,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96754324] [2023-12-15 23:31:23,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:23,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:31:23,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:23,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:31:23,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:31:23,927 INFO L87 Difference]: Start difference. First operand 5200 states and 7074 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:24,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:24,584 INFO L93 Difference]: Finished difference Result 22118 states and 30847 transitions. [2023-12-15 23:31:24,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:31:24,585 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-15 23:31:24,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:24,625 INFO L225 Difference]: With dead ends: 22118 [2023-12-15 23:31:24,625 INFO L226 Difference]: Without dead ends: 19882 [2023-12-15 23:31:24,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:31:24,637 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 4352 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4352 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:24,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4352 Valid, 1012 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 23:31:24,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19882 states. [2023-12-15 23:31:24,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19882 to 5297. [2023-12-15 23:31:24,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5297 states, 5295 states have (on average 1.3603399433427763) internal successors, (7203), 5296 states have internal predecessors, (7203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:24,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5297 states to 5297 states and 7203 transitions. [2023-12-15 23:31:24,851 INFO L78 Accepts]: Start accepts. Automaton has 5297 states and 7203 transitions. Word has length 68 [2023-12-15 23:31:24,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:24,851 INFO L495 AbstractCegarLoop]: Abstraction has 5297 states and 7203 transitions. [2023-12-15 23:31:24,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:24,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5297 states and 7203 transitions. [2023-12-15 23:31:24,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-15 23:31:24,856 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:24,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:24,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 23:31:24,856 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:24,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:24,857 INFO L85 PathProgramCache]: Analyzing trace with hash -258674765, now seen corresponding path program 1 times [2023-12-15 23:31:24,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:24,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701244973] [2023-12-15 23:31:24,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:24,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:25,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:25,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:25,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701244973] [2023-12-15 23:31:25,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701244973] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:25,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:25,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 23:31:25,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893808776] [2023-12-15 23:31:25,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:25,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:31:25,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:25,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:31:25,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:31:25,162 INFO L87 Difference]: Start difference. First operand 5297 states and 7203 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:26,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:26,679 INFO L93 Difference]: Finished difference Result 18359 states and 25278 transitions. [2023-12-15 23:31:26,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-15 23:31:26,680 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-15 23:31:26,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:26,715 INFO L225 Difference]: With dead ends: 18359 [2023-12-15 23:31:26,715 INFO L226 Difference]: Without dead ends: 16714 [2023-12-15 23:31:26,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2023-12-15 23:31:26,726 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 2200 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 2162 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2200 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:26,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2200 Valid, 2659 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2162 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 23:31:26,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16714 states. [2023-12-15 23:31:26,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16714 to 5297. [2023-12-15 23:31:26,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5297 states, 5295 states have (on average 1.3599622285174693) internal successors, (7201), 5296 states have internal predecessors, (7201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:26,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5297 states to 5297 states and 7201 transitions. [2023-12-15 23:31:26,901 INFO L78 Accepts]: Start accepts. Automaton has 5297 states and 7201 transitions. Word has length 69 [2023-12-15 23:31:26,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:26,901 INFO L495 AbstractCegarLoop]: Abstraction has 5297 states and 7201 transitions. [2023-12-15 23:31:26,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:26,902 INFO L276 IsEmpty]: Start isEmpty. Operand 5297 states and 7201 transitions. [2023-12-15 23:31:26,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-15 23:31:26,906 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:26,907 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:26,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 23:31:26,907 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:26,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:26,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1238363246, now seen corresponding path program 1 times [2023-12-15 23:31:26,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:26,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225047793] [2023-12-15 23:31:26,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:26,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:27,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:27,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:27,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225047793] [2023-12-15 23:31:27,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225047793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:27,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:27,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:31:27,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437130003] [2023-12-15 23:31:27,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:27,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:31:27,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:27,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:31:27,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:31:27,207 INFO L87 Difference]: Start difference. First operand 5297 states and 7201 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:28,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:28,164 INFO L93 Difference]: Finished difference Result 16195 states and 22582 transitions. [2023-12-15 23:31:28,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:31:28,165 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-15 23:31:28,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:28,188 INFO L225 Difference]: With dead ends: 16195 [2023-12-15 23:31:28,188 INFO L226 Difference]: Without dead ends: 13107 [2023-12-15 23:31:28,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-15 23:31:28,198 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 2640 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2640 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:28,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2640 Valid, 1918 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 23:31:28,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13107 states. [2023-12-15 23:31:28,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13107 to 5293. [2023-12-15 23:31:28,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5291 states have (on average 1.3594783594783595) internal successors, (7193), 5292 states have internal predecessors, (7193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:28,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 7193 transitions. [2023-12-15 23:31:28,329 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 7193 transitions. Word has length 69 [2023-12-15 23:31:28,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:28,329 INFO L495 AbstractCegarLoop]: Abstraction has 5293 states and 7193 transitions. [2023-12-15 23:31:28,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:28,330 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 7193 transitions. [2023-12-15 23:31:28,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-15 23:31:28,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:28,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:28,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 23:31:28,335 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:28,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:28,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1327890955, now seen corresponding path program 1 times [2023-12-15 23:31:28,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:28,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510939630] [2023-12-15 23:31:28,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:28,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:28,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:28,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:28,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510939630] [2023-12-15 23:31:28,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510939630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:28,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:28,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 23:31:28,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115110422] [2023-12-15 23:31:28,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:28,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 23:31:28,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:28,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 23:31:28,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:31:28,919 INFO L87 Difference]: Start difference. First operand 5293 states and 7193 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:29,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:29,675 INFO L93 Difference]: Finished difference Result 21715 states and 30450 transitions. [2023-12-15 23:31:29,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-15 23:31:29,676 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-15 23:31:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:29,708 INFO L225 Difference]: With dead ends: 21715 [2023-12-15 23:31:29,708 INFO L226 Difference]: Without dead ends: 18503 [2023-12-15 23:31:29,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:31:29,719 INFO L413 NwaCegarLoop]: 805 mSDtfsCounter, 1903 mSDsluCounter, 4132 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1903 SdHoareTripleChecker+Valid, 4937 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:29,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1903 Valid, 4937 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 23:31:29,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18503 states. [2023-12-15 23:31:29,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18503 to 5153. [2023-12-15 23:31:29,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5151 states have (on average 1.361094933022714) internal successors, (7011), 5152 states have internal predecessors, (7011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:29,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 7011 transitions. [2023-12-15 23:31:29,900 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 7011 transitions. Word has length 70 [2023-12-15 23:31:29,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:29,901 INFO L495 AbstractCegarLoop]: Abstraction has 5153 states and 7011 transitions. [2023-12-15 23:31:29,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:29,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 7011 transitions. [2023-12-15 23:31:29,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-15 23:31:29,906 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:29,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:29,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 23:31:29,906 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:29,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:29,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1786596526, now seen corresponding path program 1 times [2023-12-15 23:31:29,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:29,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137376870] [2023-12-15 23:31:29,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:29,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:30,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:30,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:30,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137376870] [2023-12-15 23:31:30,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137376870] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:30,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:30,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:31:30,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047622696] [2023-12-15 23:31:30,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:30,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:31:30,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:30,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:31:30,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:31:30,165 INFO L87 Difference]: Start difference. First operand 5153 states and 7011 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:31,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:31,158 INFO L93 Difference]: Finished difference Result 16113 states and 22495 transitions. [2023-12-15 23:31:31,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:31:31,158 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-15 23:31:31,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:31,183 INFO L225 Difference]: With dead ends: 16113 [2023-12-15 23:31:31,183 INFO L226 Difference]: Without dead ends: 12983 [2023-12-15 23:31:31,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:31:31,194 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 2257 mSDsluCounter, 1703 mSDsCounter, 0 mSdLazyCounter, 1506 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2257 SdHoareTripleChecker+Valid, 2159 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:31,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2257 Valid, 2159 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1506 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 23:31:31,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12983 states. [2023-12-15 23:31:31,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12983 to 5129. [2023-12-15 23:31:31,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5127 states have (on average 1.3598595669982445) internal successors, (6972), 5128 states have internal predecessors, (6972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:31,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 6972 transitions. [2023-12-15 23:31:31,405 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 6972 transitions. Word has length 70 [2023-12-15 23:31:31,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:31,405 INFO L495 AbstractCegarLoop]: Abstraction has 5129 states and 6972 transitions. [2023-12-15 23:31:31,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:31,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 6972 transitions. [2023-12-15 23:31:31,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-15 23:31:31,410 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:31,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:31,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 23:31:31,411 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:31,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:31,411 INFO L85 PathProgramCache]: Analyzing trace with hash -926620498, now seen corresponding path program 1 times [2023-12-15 23:31:31,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:31,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708512876] [2023-12-15 23:31:31,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:31,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:31,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:31,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:31,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708512876] [2023-12-15 23:31:31,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708512876] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:31,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:31,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-15 23:31:31,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648698672] [2023-12-15 23:31:31,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:31,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-15 23:31:31,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:31,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-15 23:31:31,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-15 23:31:31,950 INFO L87 Difference]: Start difference. First operand 5129 states and 6972 transitions. Second operand has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:34,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:34,069 INFO L93 Difference]: Finished difference Result 55335 states and 77843 transitions. [2023-12-15 23:31:34,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-15 23:31:34,070 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-15 23:31:34,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:34,162 INFO L225 Difference]: With dead ends: 55335 [2023-12-15 23:31:34,162 INFO L226 Difference]: Without dead ends: 52049 [2023-12-15 23:31:34,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=429, Invalid=1551, Unknown=0, NotChecked=0, Total=1980 [2023-12-15 23:31:34,187 INFO L413 NwaCegarLoop]: 788 mSDtfsCounter, 8655 mSDsluCounter, 5736 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8655 SdHoareTripleChecker+Valid, 6524 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:34,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8655 Valid, 6524 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 23:31:34,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52049 states. [2023-12-15 23:31:34,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52049 to 4919. [2023-12-15 23:31:34,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4919 states, 4917 states have (on average 1.3622127313402481) internal successors, (6698), 4918 states have internal predecessors, (6698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:34,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4919 states to 4919 states and 6698 transitions. [2023-12-15 23:31:34,653 INFO L78 Accepts]: Start accepts. Automaton has 4919 states and 6698 transitions. Word has length 70 [2023-12-15 23:31:34,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:34,654 INFO L495 AbstractCegarLoop]: Abstraction has 4919 states and 6698 transitions. [2023-12-15 23:31:34,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:34,654 INFO L276 IsEmpty]: Start isEmpty. Operand 4919 states and 6698 transitions. [2023-12-15 23:31:34,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-15 23:31:34,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:34,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:34,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 23:31:34,660 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:34,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:34,660 INFO L85 PathProgramCache]: Analyzing trace with hash -869291000, now seen corresponding path program 1 times [2023-12-15 23:31:34,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:34,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838779593] [2023-12-15 23:31:34,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:34,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:34,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:34,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:34,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838779593] [2023-12-15 23:31:34,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838779593] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:34,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:34,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:31:34,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072854131] [2023-12-15 23:31:34,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:34,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:31:34,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:34,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:31:34,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:31:34,790 INFO L87 Difference]: Start difference. First operand 4919 states and 6698 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:35,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:35,445 INFO L93 Difference]: Finished difference Result 19001 states and 26419 transitions. [2023-12-15 23:31:35,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:31:35,446 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-15 23:31:35,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:35,469 INFO L225 Difference]: With dead ends: 19001 [2023-12-15 23:31:35,469 INFO L226 Difference]: Without dead ends: 16929 [2023-12-15 23:31:35,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:31:35,478 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 2913 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2913 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:35,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2913 Valid, 1074 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 23:31:35,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16929 states. [2023-12-15 23:31:35,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16929 to 4990. [2023-12-15 23:31:35,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4990 states, 4988 states have (on average 1.3626704089815558) internal successors, (6797), 4989 states have internal predecessors, (6797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:35,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4990 states to 4990 states and 6797 transitions. [2023-12-15 23:31:35,730 INFO L78 Accepts]: Start accepts. Automaton has 4990 states and 6797 transitions. Word has length 70 [2023-12-15 23:31:35,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:35,730 INFO L495 AbstractCegarLoop]: Abstraction has 4990 states and 6797 transitions. [2023-12-15 23:31:35,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:35,730 INFO L276 IsEmpty]: Start isEmpty. Operand 4990 states and 6797 transitions. [2023-12-15 23:31:35,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-15 23:31:35,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:35,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:35,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 23:31:35,735 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:35,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:35,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1664399330, now seen corresponding path program 1 times [2023-12-15 23:31:35,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:35,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466695110] [2023-12-15 23:31:35,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:35,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:36,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:36,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466695110] [2023-12-15 23:31:36,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466695110] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:36,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:36,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-15 23:31:36,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122786798] [2023-12-15 23:31:36,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:36,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-15 23:31:36,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:36,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-15 23:31:36,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-15 23:31:36,373 INFO L87 Difference]: Start difference. First operand 4990 states and 6797 transitions. Second operand has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:38,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:38,746 INFO L93 Difference]: Finished difference Result 49394 states and 69617 transitions. [2023-12-15 23:31:38,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-15 23:31:38,746 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-12-15 23:31:38,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:38,813 INFO L225 Difference]: With dead ends: 49394 [2023-12-15 23:31:38,813 INFO L226 Difference]: Without dead ends: 46227 [2023-12-15 23:31:38,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=345, Invalid=1215, Unknown=0, NotChecked=0, Total=1560 [2023-12-15 23:31:38,836 INFO L413 NwaCegarLoop]: 827 mSDtfsCounter, 5661 mSDsluCounter, 5694 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5661 SdHoareTripleChecker+Valid, 6521 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:38,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5661 Valid, 6521 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 23:31:38,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46227 states. [2023-12-15 23:31:39,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46227 to 4903. [2023-12-15 23:31:39,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4903 states, 4902 states have (on average 1.3600571195430438) internal successors, (6667), 4902 states have internal predecessors, (6667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:39,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4903 states to 4903 states and 6667 transitions. [2023-12-15 23:31:39,230 INFO L78 Accepts]: Start accepts. Automaton has 4903 states and 6667 transitions. Word has length 71 [2023-12-15 23:31:39,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:39,230 INFO L495 AbstractCegarLoop]: Abstraction has 4903 states and 6667 transitions. [2023-12-15 23:31:39,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:39,230 INFO L276 IsEmpty]: Start isEmpty. Operand 4903 states and 6667 transitions. [2023-12-15 23:31:39,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-15 23:31:39,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:39,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:39,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 23:31:39,234 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:39,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:39,235 INFO L85 PathProgramCache]: Analyzing trace with hash -70988118, now seen corresponding path program 1 times [2023-12-15 23:31:39,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:39,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369982185] [2023-12-15 23:31:39,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:39,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:39,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:39,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:39,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369982185] [2023-12-15 23:31:39,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369982185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:39,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:39,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 23:31:39,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239959593] [2023-12-15 23:31:39,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:39,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:31:39,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:39,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:31:39,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:31:39,488 INFO L87 Difference]: Start difference. First operand 4903 states and 6667 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:40,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:40,708 INFO L93 Difference]: Finished difference Result 21383 states and 29882 transitions. [2023-12-15 23:31:40,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-15 23:31:40,709 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-12-15 23:31:40,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:40,731 INFO L225 Difference]: With dead ends: 21383 [2023-12-15 23:31:40,731 INFO L226 Difference]: Without dead ends: 18053 [2023-12-15 23:31:40,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2023-12-15 23:31:40,741 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 2879 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2879 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:40,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2879 Valid, 2129 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 23:31:40,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18053 states. [2023-12-15 23:31:40,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18053 to 4778. [2023-12-15 23:31:40,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4778 states, 4777 states have (on average 1.3600586141930082) internal successors, (6497), 4777 states have internal predecessors, (6497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:40,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4778 states to 4778 states and 6497 transitions. [2023-12-15 23:31:40,974 INFO L78 Accepts]: Start accepts. Automaton has 4778 states and 6497 transitions. Word has length 71 [2023-12-15 23:31:40,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:40,974 INFO L495 AbstractCegarLoop]: Abstraction has 4778 states and 6497 transitions. [2023-12-15 23:31:40,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:40,974 INFO L276 IsEmpty]: Start isEmpty. Operand 4778 states and 6497 transitions. [2023-12-15 23:31:40,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-15 23:31:40,978 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:40,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:40,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 23:31:40,979 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:40,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:40,980 INFO L85 PathProgramCache]: Analyzing trace with hash 381104671, now seen corresponding path program 1 times [2023-12-15 23:31:40,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:40,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711455934] [2023-12-15 23:31:40,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:40,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:41,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:41,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:41,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711455934] [2023-12-15 23:31:41,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711455934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:41,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:41,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 23:31:41,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909498263] [2023-12-15 23:31:41,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:41,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 23:31:41,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:41,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 23:31:41,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:31:41,381 INFO L87 Difference]: Start difference. First operand 4778 states and 6497 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:42,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:42,325 INFO L93 Difference]: Finished difference Result 23644 states and 33288 transitions. [2023-12-15 23:31:42,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-15 23:31:42,326 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-12-15 23:31:42,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:42,347 INFO L225 Difference]: With dead ends: 23644 [2023-12-15 23:31:42,347 INFO L226 Difference]: Without dead ends: 20560 [2023-12-15 23:31:42,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2023-12-15 23:31:42,356 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 3538 mSDsluCounter, 3914 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3538 SdHoareTripleChecker+Valid, 4607 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:42,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3538 Valid, 4607 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 23:31:42,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20560 states. [2023-12-15 23:31:42,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20560 to 4786. [2023-12-15 23:31:42,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4786 states, 4785 states have (on average 1.3602925809822362) internal successors, (6509), 4785 states have internal predecessors, (6509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:42,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4786 states to 4786 states and 6509 transitions. [2023-12-15 23:31:42,505 INFO L78 Accepts]: Start accepts. Automaton has 4786 states and 6509 transitions. Word has length 72 [2023-12-15 23:31:42,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:42,505 INFO L495 AbstractCegarLoop]: Abstraction has 4786 states and 6509 transitions. [2023-12-15 23:31:42,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:42,506 INFO L276 IsEmpty]: Start isEmpty. Operand 4786 states and 6509 transitions. [2023-12-15 23:31:42,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-15 23:31:42,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:42,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:42,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 23:31:42,510 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:42,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:42,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2053390009, now seen corresponding path program 1 times [2023-12-15 23:31:42,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:42,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435756066] [2023-12-15 23:31:42,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:42,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:42,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:42,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:42,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435756066] [2023-12-15 23:31:42,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435756066] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:42,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:42,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:31:42,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117685388] [2023-12-15 23:31:42,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:42,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:31:42,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:42,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:31:42,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:31:42,611 INFO L87 Difference]: Start difference. First operand 4786 states and 6509 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:43,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:43,222 INFO L93 Difference]: Finished difference Result 21264 states and 29734 transitions. [2023-12-15 23:31:43,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:31:43,222 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-12-15 23:31:43,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:43,240 INFO L225 Difference]: With dead ends: 21264 [2023-12-15 23:31:43,240 INFO L226 Difference]: Without dead ends: 19188 [2023-12-15 23:31:43,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:31:43,245 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 2913 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2913 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:43,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2913 Valid, 1036 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 23:31:43,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19188 states. [2023-12-15 23:31:43,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19188 to 4804. [2023-12-15 23:31:43,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4804 states, 4803 states have (on average 1.3597751405371643) internal successors, (6531), 4803 states have internal predecessors, (6531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:43,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4804 states to 4804 states and 6531 transitions. [2023-12-15 23:31:43,393 INFO L78 Accepts]: Start accepts. Automaton has 4804 states and 6531 transitions. Word has length 72 [2023-12-15 23:31:43,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:43,393 INFO L495 AbstractCegarLoop]: Abstraction has 4804 states and 6531 transitions. [2023-12-15 23:31:43,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:43,393 INFO L276 IsEmpty]: Start isEmpty. Operand 4804 states and 6531 transitions. [2023-12-15 23:31:43,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-15 23:31:43,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:43,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:43,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-15 23:31:43,399 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:43,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:43,399 INFO L85 PathProgramCache]: Analyzing trace with hash 295677326, now seen corresponding path program 1 times [2023-12-15 23:31:43,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:43,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652252541] [2023-12-15 23:31:43,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:43,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:43,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:43,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:43,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652252541] [2023-12-15 23:31:43,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652252541] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:43,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:43,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:43,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958842553] [2023-12-15 23:31:43,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:43,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:43,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:43,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:43,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:43,451 INFO L87 Difference]: Start difference. First operand 4804 states and 6531 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:43,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:43,489 INFO L93 Difference]: Finished difference Result 7171 states and 9831 transitions. [2023-12-15 23:31:43,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:43,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-15 23:31:43,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:43,497 INFO L225 Difference]: With dead ends: 7171 [2023-12-15 23:31:43,497 INFO L226 Difference]: Without dead ends: 4806 [2023-12-15 23:31:43,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:43,501 INFO L413 NwaCegarLoop]: 705 mSDtfsCounter, 314 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:43,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1198 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:31:43,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4806 states. [2023-12-15 23:31:43,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4806 to 4804. [2023-12-15 23:31:43,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4804 states, 4803 states have (on average 1.3487403706017074) internal successors, (6478), 4803 states have internal predecessors, (6478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:43,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4804 states to 4804 states and 6478 transitions. [2023-12-15 23:31:43,561 INFO L78 Accepts]: Start accepts. Automaton has 4804 states and 6478 transitions. Word has length 73 [2023-12-15 23:31:43,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:43,561 INFO L495 AbstractCegarLoop]: Abstraction has 4804 states and 6478 transitions. [2023-12-15 23:31:43,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:43,561 INFO L276 IsEmpty]: Start isEmpty. Operand 4804 states and 6478 transitions. [2023-12-15 23:31:43,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 23:31:43,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:43,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:43,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-15 23:31:43,567 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:43,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:43,567 INFO L85 PathProgramCache]: Analyzing trace with hash 291044284, now seen corresponding path program 1 times [2023-12-15 23:31:43,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:43,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702506214] [2023-12-15 23:31:43,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:43,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:43,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:43,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:43,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702506214] [2023-12-15 23:31:43,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702506214] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:43,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:43,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:43,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920438141] [2023-12-15 23:31:43,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:43,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:43,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:43,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:43,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:43,621 INFO L87 Difference]: Start difference. First operand 4804 states and 6478 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:43,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:43,693 INFO L93 Difference]: Finished difference Result 9609 states and 13102 transitions. [2023-12-15 23:31:43,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:43,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-12-15 23:31:43,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:43,701 INFO L225 Difference]: With dead ends: 9609 [2023-12-15 23:31:43,701 INFO L226 Difference]: Without dead ends: 6825 [2023-12-15 23:31:43,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:43,705 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 387 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:43,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 562 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:31:43,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6825 states. [2023-12-15 23:31:43,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6825 to 6805. [2023-12-15 23:31:43,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6805 states, 6804 states have (on average 1.3668430335097002) internal successors, (9300), 6804 states have internal predecessors, (9300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:43,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6805 states to 6805 states and 9300 transitions. [2023-12-15 23:31:43,783 INFO L78 Accepts]: Start accepts. Automaton has 6805 states and 9300 transitions. Word has length 74 [2023-12-15 23:31:43,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:43,783 INFO L495 AbstractCegarLoop]: Abstraction has 6805 states and 9300 transitions. [2023-12-15 23:31:43,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:43,784 INFO L276 IsEmpty]: Start isEmpty. Operand 6805 states and 9300 transitions. [2023-12-15 23:31:43,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 23:31:43,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:43,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:43,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-15 23:31:43,791 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:43,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:43,791 INFO L85 PathProgramCache]: Analyzing trace with hash -957362587, now seen corresponding path program 1 times [2023-12-15 23:31:43,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:43,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129195669] [2023-12-15 23:31:43,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:43,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:43,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:43,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129195669] [2023-12-15 23:31:43,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129195669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:43,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:43,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:43,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875864737] [2023-12-15 23:31:43,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:43,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:43,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:43,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:43,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:43,854 INFO L87 Difference]: Start difference. First operand 6805 states and 9300 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:43,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:43,920 INFO L93 Difference]: Finished difference Result 12680 states and 17445 transitions. [2023-12-15 23:31:43,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:43,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-12-15 23:31:43,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:43,931 INFO L225 Difference]: With dead ends: 12680 [2023-12-15 23:31:43,931 INFO L226 Difference]: Without dead ends: 8482 [2023-12-15 23:31:43,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:43,939 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 385 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:43,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 641 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:31:43,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8482 states. [2023-12-15 23:31:44,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8482 to 6330. [2023-12-15 23:31:44,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6330 states, 6329 states have (on average 1.370990677832201) internal successors, (8677), 6329 states have internal predecessors, (8677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:44,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6330 states to 6330 states and 8677 transitions. [2023-12-15 23:31:44,031 INFO L78 Accepts]: Start accepts. Automaton has 6330 states and 8677 transitions. Word has length 74 [2023-12-15 23:31:44,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:44,031 INFO L495 AbstractCegarLoop]: Abstraction has 6330 states and 8677 transitions. [2023-12-15 23:31:44,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:44,032 INFO L276 IsEmpty]: Start isEmpty. Operand 6330 states and 8677 transitions. [2023-12-15 23:31:44,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-15 23:31:44,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:44,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:44,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-15 23:31:44,037 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:44,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:44,038 INFO L85 PathProgramCache]: Analyzing trace with hash -190072303, now seen corresponding path program 1 times [2023-12-15 23:31:44,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:44,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985735849] [2023-12-15 23:31:44,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:44,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:44,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:44,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:44,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985735849] [2023-12-15 23:31:44,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985735849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:44,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:44,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:31:44,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066032710] [2023-12-15 23:31:44,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:44,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:31:44,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:44,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:31:44,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:31:44,250 INFO L87 Difference]: Start difference. First operand 6330 states and 8677 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:44,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:44,885 INFO L93 Difference]: Finished difference Result 9944 states and 13717 transitions. [2023-12-15 23:31:44,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:31:44,885 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-15 23:31:44,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:44,891 INFO L225 Difference]: With dead ends: 9944 [2023-12-15 23:31:44,891 INFO L226 Difference]: Without dead ends: 8222 [2023-12-15 23:31:44,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-15 23:31:44,894 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 1912 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1912 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:44,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1912 Valid, 1355 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 23:31:44,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8222 states. [2023-12-15 23:31:44,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8222 to 6328. [2023-12-15 23:31:44,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6328 states, 6327 states have (on average 1.370791844476055) internal successors, (8673), 6327 states have internal predecessors, (8673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:45,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6328 states to 6328 states and 8673 transitions. [2023-12-15 23:31:45,003 INFO L78 Accepts]: Start accepts. Automaton has 6328 states and 8673 transitions. Word has length 75 [2023-12-15 23:31:45,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:45,003 INFO L495 AbstractCegarLoop]: Abstraction has 6328 states and 8673 transitions. [2023-12-15 23:31:45,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:45,004 INFO L276 IsEmpty]: Start isEmpty. Operand 6328 states and 8673 transitions. [2023-12-15 23:31:45,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-15 23:31:45,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:45,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:45,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-15 23:31:45,013 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:45,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:45,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1509828194, now seen corresponding path program 1 times [2023-12-15 23:31:45,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:45,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119389376] [2023-12-15 23:31:45,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:45,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:45,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:45,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:45,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119389376] [2023-12-15 23:31:45,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119389376] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:45,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:45,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:45,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250169177] [2023-12-15 23:31:45,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:45,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:45,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:45,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:45,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:45,068 INFO L87 Difference]: Start difference. First operand 6328 states and 8673 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:45,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:45,122 INFO L93 Difference]: Finished difference Result 9704 states and 13367 transitions. [2023-12-15 23:31:45,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:45,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-12-15 23:31:45,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:45,130 INFO L225 Difference]: With dead ends: 9704 [2023-12-15 23:31:45,130 INFO L226 Difference]: Without dead ends: 6330 [2023-12-15 23:31:45,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:45,137 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 230 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:45,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 908 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:31:45,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6330 states. [2023-12-15 23:31:45,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6330 to 6328. [2023-12-15 23:31:45,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6328 states, 6327 states have (on average 1.3565670934091987) internal successors, (8583), 6327 states have internal predecessors, (8583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:45,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6328 states to 6328 states and 8583 transitions. [2023-12-15 23:31:45,212 INFO L78 Accepts]: Start accepts. Automaton has 6328 states and 8583 transitions. Word has length 76 [2023-12-15 23:31:45,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:45,213 INFO L495 AbstractCegarLoop]: Abstraction has 6328 states and 8583 transitions. [2023-12-15 23:31:45,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:45,213 INFO L276 IsEmpty]: Start isEmpty. Operand 6328 states and 8583 transitions. [2023-12-15 23:31:45,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-15 23:31:45,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:45,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:45,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-15 23:31:45,218 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:45,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:45,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1943441895, now seen corresponding path program 1 times [2023-12-15 23:31:45,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:45,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742807704] [2023-12-15 23:31:45,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:45,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:45,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:45,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:45,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742807704] [2023-12-15 23:31:45,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742807704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:45,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:45,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:45,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291051833] [2023-12-15 23:31:45,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:45,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:45,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:45,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:45,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:45,263 INFO L87 Difference]: Start difference. First operand 6328 states and 8583 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:45,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:45,344 INFO L93 Difference]: Finished difference Result 11694 states and 15970 transitions. [2023-12-15 23:31:45,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:45,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-15 23:31:45,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:45,353 INFO L225 Difference]: With dead ends: 11694 [2023-12-15 23:31:45,354 INFO L226 Difference]: Without dead ends: 7830 [2023-12-15 23:31:45,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:45,359 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 341 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:45,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 496 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:31:45,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7830 states. [2023-12-15 23:31:45,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7830 to 5994. [2023-12-15 23:31:45,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5994 states, 5993 states have (on average 1.3595861838811947) internal successors, (8148), 5993 states have internal predecessors, (8148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:45,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5994 states to 5994 states and 8148 transitions. [2023-12-15 23:31:45,434 INFO L78 Accepts]: Start accepts. Automaton has 5994 states and 8148 transitions. Word has length 77 [2023-12-15 23:31:45,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:45,434 INFO L495 AbstractCegarLoop]: Abstraction has 5994 states and 8148 transitions. [2023-12-15 23:31:45,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:45,434 INFO L276 IsEmpty]: Start isEmpty. Operand 5994 states and 8148 transitions. [2023-12-15 23:31:45,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-15 23:31:45,439 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:45,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:45,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-15 23:31:45,439 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:45,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:45,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1934880587, now seen corresponding path program 1 times [2023-12-15 23:31:45,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:45,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564587548] [2023-12-15 23:31:45,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:45,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:45,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:45,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:45,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564587548] [2023-12-15 23:31:45,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564587548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:45,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:45,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-15 23:31:45,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550896937] [2023-12-15 23:31:45,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:45,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 23:31:45,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:45,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 23:31:45,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-15 23:31:45,880 INFO L87 Difference]: Start difference. First operand 5994 states and 8148 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:46,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:46,712 INFO L93 Difference]: Finished difference Result 13616 states and 18704 transitions. [2023-12-15 23:31:46,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:31:46,713 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-15 23:31:46,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:46,729 INFO L225 Difference]: With dead ends: 13616 [2023-12-15 23:31:46,729 INFO L226 Difference]: Without dead ends: 13024 [2023-12-15 23:31:46,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2023-12-15 23:31:46,736 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 2493 mSDsluCounter, 3930 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2493 SdHoareTripleChecker+Valid, 4708 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:46,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2493 Valid, 4708 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 23:31:46,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13024 states. [2023-12-15 23:31:46,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13024 to 5986. [2023-12-15 23:31:46,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5986 states, 5985 states have (on average 1.359565580618212) internal successors, (8137), 5985 states have internal predecessors, (8137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:46,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5986 states to 5986 states and 8137 transitions. [2023-12-15 23:31:46,822 INFO L78 Accepts]: Start accepts. Automaton has 5986 states and 8137 transitions. Word has length 78 [2023-12-15 23:31:46,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:46,822 INFO L495 AbstractCegarLoop]: Abstraction has 5986 states and 8137 transitions. [2023-12-15 23:31:46,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:46,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5986 states and 8137 transitions. [2023-12-15 23:31:46,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-15 23:31:46,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:46,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:46,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-15 23:31:46,829 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:46,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:46,829 INFO L85 PathProgramCache]: Analyzing trace with hash -991837113, now seen corresponding path program 1 times [2023-12-15 23:31:46,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:46,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164555824] [2023-12-15 23:31:46,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:46,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:46,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:46,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:46,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164555824] [2023-12-15 23:31:46,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164555824] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:46,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:46,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:31:46,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233077670] [2023-12-15 23:31:46,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:46,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:31:46,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:46,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:31:46,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:31:46,919 INFO L87 Difference]: Start difference. First operand 5986 states and 8137 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:47,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:47,056 INFO L93 Difference]: Finished difference Result 23802 states and 33103 transitions. [2023-12-15 23:31:47,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 23:31:47,056 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2023-12-15 23:31:47,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:47,081 INFO L225 Difference]: With dead ends: 23802 [2023-12-15 23:31:47,081 INFO L226 Difference]: Without dead ends: 18982 [2023-12-15 23:31:47,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:31:47,097 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 1766 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:47,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 1229 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:31:47,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18982 states. [2023-12-15 23:31:47,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18982 to 10804. [2023-12-15 23:31:47,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10804 states, 10803 states have (on average 1.361658798481903) internal successors, (14710), 10803 states have internal predecessors, (14710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:47,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10804 states to 10804 states and 14710 transitions. [2023-12-15 23:31:47,324 INFO L78 Accepts]: Start accepts. Automaton has 10804 states and 14710 transitions. Word has length 84 [2023-12-15 23:31:47,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:47,325 INFO L495 AbstractCegarLoop]: Abstraction has 10804 states and 14710 transitions. [2023-12-15 23:31:47,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:47,325 INFO L276 IsEmpty]: Start isEmpty. Operand 10804 states and 14710 transitions. [2023-12-15 23:31:47,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-15 23:31:47,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:47,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:47,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-15 23:31:47,334 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:47,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:47,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1399817422, now seen corresponding path program 1 times [2023-12-15 23:31:47,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:47,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135677492] [2023-12-15 23:31:47,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:47,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:47,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:47,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:47,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135677492] [2023-12-15 23:31:47,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135677492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:47,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:47,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:31:47,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067090978] [2023-12-15 23:31:47,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:47,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:31:47,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:47,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:31:47,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:31:47,442 INFO L87 Difference]: Start difference. First operand 10804 states and 14710 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:47,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:47,601 INFO L93 Difference]: Finished difference Result 17368 states and 23606 transitions. [2023-12-15 23:31:47,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 23:31:47,602 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-15 23:31:47,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:47,619 INFO L225 Difference]: With dead ends: 17368 [2023-12-15 23:31:47,619 INFO L226 Difference]: Without dead ends: 13483 [2023-12-15 23:31:47,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:31:47,627 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 1134 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:47,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 1080 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:31:47,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13483 states. [2023-12-15 23:31:47,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13483 to 11785. [2023-12-15 23:31:47,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11785 states, 11784 states have (on average 1.355906313645621) internal successors, (15978), 11784 states have internal predecessors, (15978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:47,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11785 states to 11785 states and 15978 transitions. [2023-12-15 23:31:47,768 INFO L78 Accepts]: Start accepts. Automaton has 11785 states and 15978 transitions. Word has length 85 [2023-12-15 23:31:47,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:47,769 INFO L495 AbstractCegarLoop]: Abstraction has 11785 states and 15978 transitions. [2023-12-15 23:31:47,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:47,769 INFO L276 IsEmpty]: Start isEmpty. Operand 11785 states and 15978 transitions. [2023-12-15 23:31:47,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-15 23:31:47,776 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:47,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:47,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-15 23:31:47,776 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:47,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:47,776 INFO L85 PathProgramCache]: Analyzing trace with hash -278253135, now seen corresponding path program 1 times [2023-12-15 23:31:47,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:47,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785123636] [2023-12-15 23:31:47,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:47,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:47,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:47,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:47,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785123636] [2023-12-15 23:31:47,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785123636] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:47,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:47,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:47,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597693532] [2023-12-15 23:31:47,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:47,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:47,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:47,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:47,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:47,862 INFO L87 Difference]: Start difference. First operand 11785 states and 15978 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:47,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:47,950 INFO L93 Difference]: Finished difference Result 32165 states and 43820 transitions. [2023-12-15 23:31:47,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:47,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-15 23:31:47,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:47,977 INFO L225 Difference]: With dead ends: 32165 [2023-12-15 23:31:47,977 INFO L226 Difference]: Without dead ends: 21567 [2023-12-15 23:31:47,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:47,993 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 163 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:47,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 775 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:31:48,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21567 states. [2023-12-15 23:31:48,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21567 to 20765. [2023-12-15 23:31:48,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20765 states, 20764 states have (on average 1.350510498940474) internal successors, (28042), 20764 states have internal predecessors, (28042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:48,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20765 states to 20765 states and 28042 transitions. [2023-12-15 23:31:48,246 INFO L78 Accepts]: Start accepts. Automaton has 20765 states and 28042 transitions. Word has length 86 [2023-12-15 23:31:48,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:48,246 INFO L495 AbstractCegarLoop]: Abstraction has 20765 states and 28042 transitions. [2023-12-15 23:31:48,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:48,247 INFO L276 IsEmpty]: Start isEmpty. Operand 20765 states and 28042 transitions. [2023-12-15 23:31:48,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-15 23:31:48,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:48,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:48,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-15 23:31:48,255 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:48,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:48,256 INFO L85 PathProgramCache]: Analyzing trace with hash -990544076, now seen corresponding path program 1 times [2023-12-15 23:31:48,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:48,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629256388] [2023-12-15 23:31:48,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:48,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:48,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:48,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:48,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629256388] [2023-12-15 23:31:48,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629256388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:48,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:48,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:48,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716656254] [2023-12-15 23:31:48,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:48,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:48,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:48,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:48,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:48,339 INFO L87 Difference]: Start difference. First operand 20765 states and 28042 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:48,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:48,580 INFO L93 Difference]: Finished difference Result 57505 states and 77884 transitions. [2023-12-15 23:31:48,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:48,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-15 23:31:48,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:48,634 INFO L225 Difference]: With dead ends: 57505 [2023-12-15 23:31:48,634 INFO L226 Difference]: Without dead ends: 37927 [2023-12-15 23:31:48,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:48,660 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 144 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:48,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 770 Invalid, 20 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:31:48,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37927 states. [2023-12-15 23:31:49,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37927 to 34981. [2023-12-15 23:31:49,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34981 states, 34980 states have (on average 1.3473413379073755) internal successors, (47130), 34980 states have internal predecessors, (47130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:49,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34981 states to 34981 states and 47130 transitions. [2023-12-15 23:31:49,181 INFO L78 Accepts]: Start accepts. Automaton has 34981 states and 47130 transitions. Word has length 86 [2023-12-15 23:31:49,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:49,182 INFO L495 AbstractCegarLoop]: Abstraction has 34981 states and 47130 transitions. [2023-12-15 23:31:49,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:49,182 INFO L276 IsEmpty]: Start isEmpty. Operand 34981 states and 47130 transitions. [2023-12-15 23:31:49,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-15 23:31:49,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:49,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:49,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-15 23:31:49,188 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:49,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:49,188 INFO L85 PathProgramCache]: Analyzing trace with hash 297564699, now seen corresponding path program 1 times [2023-12-15 23:31:49,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:49,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831941988] [2023-12-15 23:31:49,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:49,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:49,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:49,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:49,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831941988] [2023-12-15 23:31:49,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831941988] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:49,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:49,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:49,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517979152] [2023-12-15 23:31:49,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:49,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:49,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:49,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:49,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:49,271 INFO L87 Difference]: Start difference. First operand 34981 states and 47130 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:49,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:49,574 INFO L93 Difference]: Finished difference Result 99001 states and 133020 transitions. [2023-12-15 23:31:49,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:49,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-15 23:31:49,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:49,658 INFO L225 Difference]: With dead ends: 99001 [2023-12-15 23:31:49,658 INFO L226 Difference]: Without dead ends: 65207 [2023-12-15 23:31:49,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:49,697 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 122 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:49,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 765 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:31:49,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65207 states. [2023-12-15 23:31:50,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65207 to 59413. [2023-12-15 23:31:50,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59413 states, 59412 states have (on average 1.329731367400525) internal successors, (79002), 59412 states have internal predecessors, (79002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:50,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59413 states to 59413 states and 79002 transitions. [2023-12-15 23:31:50,970 INFO L78 Accepts]: Start accepts. Automaton has 59413 states and 79002 transitions. Word has length 87 [2023-12-15 23:31:50,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:50,971 INFO L495 AbstractCegarLoop]: Abstraction has 59413 states and 79002 transitions. [2023-12-15 23:31:50,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:50,971 INFO L276 IsEmpty]: Start isEmpty. Operand 59413 states and 79002 transitions. [2023-12-15 23:31:50,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-15 23:31:50,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:50,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:50,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-15 23:31:50,975 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:50,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:50,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1777357934, now seen corresponding path program 1 times [2023-12-15 23:31:50,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:50,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309780059] [2023-12-15 23:31:50,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:50,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:51,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:51,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:51,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309780059] [2023-12-15 23:31:51,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309780059] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:51,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:51,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:51,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276280423] [2023-12-15 23:31:51,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:51,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:51,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:51,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:51,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:51,028 INFO L87 Difference]: Start difference. First operand 59413 states and 79002 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:51,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:51,193 INFO L93 Difference]: Finished difference Result 69588 states and 92361 transitions. [2023-12-15 23:31:51,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:51,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-15 23:31:51,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:51,243 INFO L225 Difference]: With dead ends: 69588 [2023-12-15 23:31:51,243 INFO L226 Difference]: Without dead ends: 47646 [2023-12-15 23:31:51,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:51,266 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 216 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:51,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 809 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:31:51,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47646 states. [2023-12-15 23:31:51,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47646 to 35624. [2023-12-15 23:31:51,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35624 states, 35623 states have (on average 1.3234427195912752) internal successors, (47145), 35623 states have internal predecessors, (47145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:51,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35624 states to 35624 states and 47145 transitions. [2023-12-15 23:31:51,839 INFO L78 Accepts]: Start accepts. Automaton has 35624 states and 47145 transitions. Word has length 88 [2023-12-15 23:31:51,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:51,839 INFO L495 AbstractCegarLoop]: Abstraction has 35624 states and 47145 transitions. [2023-12-15 23:31:51,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:51,840 INFO L276 IsEmpty]: Start isEmpty. Operand 35624 states and 47145 transitions. [2023-12-15 23:31:51,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-15 23:31:51,843 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:51,843 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:51,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-15 23:31:51,843 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:51,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:51,843 INFO L85 PathProgramCache]: Analyzing trace with hash 840746255, now seen corresponding path program 1 times [2023-12-15 23:31:51,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:51,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612676907] [2023-12-15 23:31:51,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:51,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:51,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:51,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:51,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612676907] [2023-12-15 23:31:51,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612676907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:51,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:51,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:51,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495535038] [2023-12-15 23:31:51,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:51,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:51,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:51,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:51,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:51,940 INFO L87 Difference]: Start difference. First operand 35624 states and 47145 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:52,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:52,319 INFO L93 Difference]: Finished difference Result 101056 states and 133623 transitions. [2023-12-15 23:31:52,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:52,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-15 23:31:52,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:52,387 INFO L225 Difference]: With dead ends: 101056 [2023-12-15 23:31:52,387 INFO L226 Difference]: Without dead ends: 65171 [2023-12-15 23:31:52,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:52,537 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 98 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:52,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 756 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:31:52,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65171 states. [2023-12-15 23:31:53,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65171 to 59622. [2023-12-15 23:31:53,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59622 states, 59621 states have (on average 1.3106120326730515) internal successors, (78140), 59621 states have internal predecessors, (78140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:53,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59622 states to 59622 states and 78140 transitions. [2023-12-15 23:31:53,276 INFO L78 Accepts]: Start accepts. Automaton has 59622 states and 78140 transitions. Word has length 90 [2023-12-15 23:31:53,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:53,276 INFO L495 AbstractCegarLoop]: Abstraction has 59622 states and 78140 transitions. [2023-12-15 23:31:53,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:53,277 INFO L276 IsEmpty]: Start isEmpty. Operand 59622 states and 78140 transitions. [2023-12-15 23:31:53,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 23:31:53,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:53,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:53,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-15 23:31:53,281 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:53,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:53,281 INFO L85 PathProgramCache]: Analyzing trace with hash 574881009, now seen corresponding path program 1 times [2023-12-15 23:31:53,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:53,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849685207] [2023-12-15 23:31:53,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:53,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:53,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:53,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:53,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849685207] [2023-12-15 23:31:53,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849685207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:53,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:53,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:31:53,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360415817] [2023-12-15 23:31:53,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:53,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:31:53,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:53,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:31:53,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:31:53,557 INFO L87 Difference]: Start difference. First operand 59622 states and 78140 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:53,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:53,859 INFO L93 Difference]: Finished difference Result 126923 states and 164190 transitions. [2023-12-15 23:31:53,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:31:53,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-15 23:31:53,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:54,156 INFO L225 Difference]: With dead ends: 126923 [2023-12-15 23:31:54,156 INFO L226 Difference]: Without dead ends: 126916 [2023-12-15 23:31:54,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:31:54,167 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 440 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:54,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 1896 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:31:54,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126916 states. [2023-12-15 23:31:55,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126916 to 64324. [2023-12-15 23:31:55,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64324 states, 64323 states have (on average 1.2878597080360057) internal successors, (82839), 64323 states have internal predecessors, (82839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:55,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64324 states to 64324 states and 82839 transitions. [2023-12-15 23:31:55,341 INFO L78 Accepts]: Start accepts. Automaton has 64324 states and 82839 transitions. Word has length 91 [2023-12-15 23:31:55,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:55,341 INFO L495 AbstractCegarLoop]: Abstraction has 64324 states and 82839 transitions. [2023-12-15 23:31:55,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:55,341 INFO L276 IsEmpty]: Start isEmpty. Operand 64324 states and 82839 transitions. [2023-12-15 23:31:55,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-15 23:31:55,344 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:55,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:55,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-15 23:31:55,344 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:55,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:55,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1087440564, now seen corresponding path program 1 times [2023-12-15 23:31:55,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:55,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712539671] [2023-12-15 23:31:55,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:55,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:55,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:55,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:55,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712539671] [2023-12-15 23:31:55,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712539671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:55,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:55,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:31:55,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352828685] [2023-12-15 23:31:55,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:55,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:31:55,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:55,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:31:55,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:55,394 INFO L87 Difference]: Start difference. First operand 64324 states and 82839 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:55,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:55,942 INFO L93 Difference]: Finished difference Result 160565 states and 205600 transitions. [2023-12-15 23:31:55,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:31:55,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-15 23:31:55,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:56,052 INFO L225 Difference]: With dead ends: 160565 [2023-12-15 23:31:56,052 INFO L226 Difference]: Without dead ends: 97122 [2023-12-15 23:31:56,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:31:56,076 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 263 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:56,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 581 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:31:56,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97122 states. [2023-12-15 23:31:57,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97122 to 96885. [2023-12-15 23:31:57,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96885 states, 96884 states have (on average 1.2662978407167333) internal successors, (122684), 96884 states have internal predecessors, (122684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:57,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96885 states to 96885 states and 122684 transitions. [2023-12-15 23:31:57,425 INFO L78 Accepts]: Start accepts. Automaton has 96885 states and 122684 transitions. Word has length 92 [2023-12-15 23:31:57,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:31:57,426 INFO L495 AbstractCegarLoop]: Abstraction has 96885 states and 122684 transitions. [2023-12-15 23:31:57,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:57,426 INFO L276 IsEmpty]: Start isEmpty. Operand 96885 states and 122684 transitions. [2023-12-15 23:31:57,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-15 23:31:57,430 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:31:57,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:31:57,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-15 23:31:57,432 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:31:57,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:31:57,432 INFO L85 PathProgramCache]: Analyzing trace with hash 2070709980, now seen corresponding path program 1 times [2023-12-15 23:31:57,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:31:57,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086943386] [2023-12-15 23:31:57,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:31:57,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:31:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:31:57,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:31:57,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:31:57,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086943386] [2023-12-15 23:31:57,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086943386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:31:57,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:31:57,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:31:57,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102976250] [2023-12-15 23:31:57,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:31:57,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:31:57,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:31:57,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:31:57,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:31:57,574 INFO L87 Difference]: Start difference. First operand 96885 states and 122684 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:31:58,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:31:58,250 INFO L93 Difference]: Finished difference Result 169332 states and 215718 transitions. [2023-12-15 23:31:58,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 23:31:58,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-15 23:31:58,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:31:58,473 INFO L225 Difference]: With dead ends: 169332 [2023-12-15 23:31:58,474 INFO L226 Difference]: Without dead ends: 151114 [2023-12-15 23:31:58,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:31:58,521 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 1267 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:31:58,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 1507 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:31:58,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151114 states. [2023-12-15 23:32:00,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151114 to 114669. [2023-12-15 23:32:00,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114669 states, 114668 states have (on average 1.2651829629888025) internal successors, (145076), 114668 states have internal predecessors, (145076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:00,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114669 states to 114669 states and 145076 transitions. [2023-12-15 23:32:00,337 INFO L78 Accepts]: Start accepts. Automaton has 114669 states and 145076 transitions. Word has length 95 [2023-12-15 23:32:00,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:00,337 INFO L495 AbstractCegarLoop]: Abstraction has 114669 states and 145076 transitions. [2023-12-15 23:32:00,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:00,338 INFO L276 IsEmpty]: Start isEmpty. Operand 114669 states and 145076 transitions. [2023-12-15 23:32:00,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-15 23:32:00,343 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:00,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:00,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-15 23:32:00,344 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:32:00,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:00,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1962084317, now seen corresponding path program 1 times [2023-12-15 23:32:00,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:00,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043369134] [2023-12-15 23:32:00,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:00,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:00,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:00,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:00,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043369134] [2023-12-15 23:32:00,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043369134] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:00,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:00,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:00,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486485261] [2023-12-15 23:32:00,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:00,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:00,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:00,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:00,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:00,407 INFO L87 Difference]: Start difference. First operand 114669 states and 145076 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:01,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:01,127 INFO L93 Difference]: Finished difference Result 154869 states and 195181 transitions. [2023-12-15 23:32:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:01,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-15 23:32:01,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. Received shutdown request... [2023-12-15 23:32:01,234 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 23:32:01,260 INFO L225 Difference]: With dead ends: 154869 [2023-12-15 23:32:01,261 INFO L226 Difference]: Without dead ends: 103539 [2023-12-15 23:32:01,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:01,291 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 234 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:01,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 769 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:32:01,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103539 states. [2023-12-15 23:32:01,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 23:32:01,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-15 23:32:01,358 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-15 23:32:01,359 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 23:32:01,362 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:01,363 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 23:32:01,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:32:01 BoogieIcfgContainer [2023-12-15 23:32:01,365 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 23:32:01,365 INFO L158 Benchmark]: Toolchain (without parser) took 46935.35ms. Allocated memory was 194.0MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 130.1MB in the beginning and 4.7GB in the end (delta: -4.6GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-15 23:32:01,365 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 194.0MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:32:01,366 INFO L158 Benchmark]: CACSL2BoogieTranslator took 976.98ms. Allocated memory was 194.0MB in the beginning and 248.5MB in the end (delta: 54.5MB). Free memory was 129.7MB in the beginning and 189.2MB in the end (delta: -59.4MB). Peak memory consumption was 52.5MB. Max. memory is 8.0GB. [2023-12-15 23:32:01,366 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.19ms. Allocated memory is still 248.5MB. Free memory was 189.2MB in the beginning and 174.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-15 23:32:01,366 INFO L158 Benchmark]: Boogie Preprocessor took 183.38ms. Allocated memory is still 248.5MB. Free memory was 174.5MB in the beginning and 159.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-15 23:32:01,366 INFO L158 Benchmark]: RCFGBuilder took 1916.71ms. Allocated memory is still 248.5MB. Free memory was 159.8MB in the beginning and 163.4MB in the end (delta: -3.6MB). Peak memory consumption was 86.6MB. Max. memory is 8.0GB. [2023-12-15 23:32:01,366 INFO L158 Benchmark]: TraceAbstraction took 43720.64ms. Allocated memory was 248.5MB in the beginning and 6.5GB in the end (delta: 6.2GB). Free memory was 162.8MB in the beginning and 4.7GB in the end (delta: -4.5GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-15 23:32:01,367 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 194.0MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 976.98ms. Allocated memory was 194.0MB in the beginning and 248.5MB in the end (delta: 54.5MB). Free memory was 129.7MB in the beginning and 189.2MB in the end (delta: -59.4MB). Peak memory consumption was 52.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 131.19ms. Allocated memory is still 248.5MB. Free memory was 189.2MB in the beginning and 174.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 183.38ms. Allocated memory is still 248.5MB. Free memory was 174.5MB in the beginning and 159.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * RCFGBuilder took 1916.71ms. Allocated memory is still 248.5MB. Free memory was 159.8MB in the beginning and 163.4MB in the end (delta: -3.6MB). Peak memory consumption was 86.6MB. Max. memory is 8.0GB. * TraceAbstraction took 43720.64ms. Allocated memory was 248.5MB in the beginning and 6.5GB in the end (delta: 6.2GB). Free memory was 162.8MB in the beginning and 4.7GB in the end (delta: -4.5GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 556]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 556). Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 1764]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1764). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 703 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 43.7s, OverallIterations: 39, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 24.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72368 SdHoareTripleChecker+Valid, 11.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72368 mSDsluCounter, 66127 SdHoareTripleChecker+Invalid, 9.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44665 mSDsCounter, 847 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17610 IncrementalHoareTripleChecker+Invalid, 18457 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 847 mSolverCounterUnsat, 21462 mSDtfsCounter, 17610 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 427 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 365 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1424 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114669occurred in iteration=38, InterpolantAutomatonStates: 345, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 12.0s AutomataMinimizationTime, 39 MinimizatonAttempts, 368241 StatesRemovedByMinimization, 38 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 2930 NumberOfCodeBlocks, 2930 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 2891 ConstructedInterpolants, 0 QuantifiedInterpolants, 16187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 39 InterpolantComputations, 39 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown